Obama on Afghan war: U.S. can see "the light of a new day"

May 2, 2012, 8:28 AM|President Obama made a highly-secret and quick trip to Afghanistan, where he met with Afghan President Hamid Karzai. The the two leaders signed an agreement committing the U.S. to continue sending military advisors and aid after combat troops go home in 2014. CBS News senior White House correspondent Bill Plante reports.